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astronomy.me.uk The Website of Lichfield Radio Astronomy Observatory (LRO)

Astronomy observatory in Staffordshire, England.

  • Calculators
  • Contact me
  • Equipment List at Lichfield Radio Observatory
  • Grafana Dashboard Cosmic Watch Detectors
  • History and description of Lichfield Radio Observatory (LRO)
  • Links to other SID monitoring sites
  • Live data from UKRAA Sudden Ionospheric Disturbance Monitor at LRO (SIDs)
  • Live feed from SuperSID monitor
  • Live feed from UKRAA CosmicWatch Muon Detectors
  • Live feed from UKRAA Magnetometer
  • Live feed from UKRAA PicoMuon Muon Detector
  • Live feeds at Lichfield Radio Observatory (LRO)
  • Live Radio meteor observations and meteor counts
  • Live stream from 1420MHz hydrogen-line 86cm Ptarmigan Triffid Dipole Array
  • Privacy Policy
  • Publications & Presentations
  • SHOOS - SARA Hydrogen-Observing Overall Survey

astronomy.me.uk The Website of Lichfield Radio Astronomy Observatory (LRO)

Astronomy observatory in Staffordshire, England.

  • Calculators
  • Contact me
  • Equipment List at Lichfield Radio Observatory
  • Grafana Dashboard Cosmic Watch Detectors
  • History and description of Lichfield Radio Observatory (LRO)
  • Links to other SID monitoring sites
  • Live data from UKRAA Sudden Ionospheric Disturbance Monitor at LRO (SIDs)
  • Live feed from SuperSID monitor
  • Live feed from UKRAA CosmicWatch Muon Detectors
  • Live feed from UKRAA Magnetometer
  • Live feed from UKRAA PicoMuon Muon Detector
  • Live feeds at Lichfield Radio Observatory (LRO)
  • Live Radio meteor observations and meteor counts
  • Live stream from 1420MHz hydrogen-line 86cm Ptarmigan Triffid Dipole Array
  • Privacy Policy
  • Publications & Presentations
  • SHOOS - SARA Hydrogen-Observing Overall Survey
Radio Interferometry
September 19, 2025 Admin

Concrete examples of small-scale / home interferometry projects & designing system based on SDRPlay Duo software-defined radio.

Some concrete examples of small-scale / home interferometry projects that use open-source software, so you can see how people have actually

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Uncategorized
September 19, 2025 Admin

Effect of blockage prime focus waveguide and supports on radio dish – diagrams and beam cuts

Modelling a 3 m dish at 1420.405 MHz in two ways: You’ll see: Diagrams: •           Unblocked beam 2D: •           Prime-focus

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Radio observation in hydrogen line (1420MHz)
September 19, 2025 Admin

Diffraction effects on prime focus radio dishes

This comes up a lot in both radio astronomy and satellite communication when using prime-focus reflectors. On a prime-focus parabolic

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Radio Interferometry
September 19, 2025 Admin

Open-source software tools and libraries for interferometry / correlator / radio astronomy

There are several open-source software tools and libraries for interferometry / correlator / radio astronomy work. Depending on how much of

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Uncategorized
September 19, 2025 Admin

The “loss surface area” from a prime-focus feed

The “loss surface area” from a prime-focus feed is just the blocked (shadowed) aperture from the feed assembly (feed + support

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Uncategorized
September 19, 2025 Admin

Typical weight of plywood used to make ribs on homemade radio dish

The weight of a 6 ft × 4 ft sheet of plywood depends on its thickness and the wood species/density. Let’s go

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Uncategorized
September 19, 2025 Admin

Typical weight of 5 ft × 5 ft sheet of fine aluminium window screening used to cover homemade radio dish

Weight of a 5 ft × 5 ft sheet of fine aluminium window screening. Let’s work it out step by

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GNU Radio
September 18, 2025 Admin

GNU Radio error “missing xterm” when installed under Windows 11

Great 👍 let’s pin down what’s pulling in xterm. On Windows GNU Radio Companion (GRC), that usually comes from a

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Uncategorized
September 18, 2025 Admin

Comparing signal attenuation at 1420 MHz in short 30cm jumper coaxial cables RG174 vs RG316

For a 30 cm jumper at 1420 MHz (H I line), RG174 and RG316 are effectively neck-and-neck—both cost you ~⅓–½ dB

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GNU Radio
September 18, 2025 Admin

GNU Radio Error Message “unable to scan ip19”

That error message — “unable to scan ip19” — isn’t a standard GNU Radio error on its own. It usually comes from

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Recent Posts

  • Linear power supply purchased Amazon for SAWBird H1 LNA 29/12/2025
  • YERKON 1.13-1.73GHz BJ14 WR650 Waveguide Coaxial Adapter Converter purchased from ebay 29/12/2025
  • My own attempt at completing homework exercises from BAA GNU Radio Group Meeting 29/11/2025: Create an electronic keyboard which plays multiple music chords, and create an AM radio player
  • Mathematical relationship between chords in music (for BAA GNU Radio Meeting homework)
  • Physicists Finally Confirm the Existence of “Time Mirrors”

Recent Comments

  1. Admin on What is a geodesic parabolic dish?
  2. Wolfgang Hermann on Is 145mm or 165mm better diameter for hydrogen line cantenna? Is a can that is 160mm diameter x 165 mm height a good choice for this?
  3. Wolfgang Hermann on Is 145mm or 165mm better diameter for hydrogen line cantenna? Is a can that is 160mm diameter x 165 mm height a good choice for this?
  4. Yoshi Takeyasu on What is a geodesic parabolic dish?
  5. Adrian Clausall on Julian Palmer Design Monopole Probe Assembly for Cantenna 12/12/2025

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Categories

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